U.S. patent number 10,011,245 [Application Number 15/451,576] was granted by the patent office on 2018-07-03 for adjustment device for seat belt mechanism.
This patent grant is currently assigned to Liang-Hsiung Wang. The grantee listed for this patent is Liang-Hsiung Wang. Invention is credited to Chia-Chun Chu, Liang-Hsiung Wang.
United States Patent |
10,011,245 |
Wang , et al. |
July 3, 2018 |
Adjustment device for seat belt mechanism
Abstract
An adjustment device has a frame, a guide, a holding bar, a
connector, and a manipulating unit. The frame has a holding
inclined surface. The guide has two guiding slots extending
longitudinally. The holding bar is disposed in and is movable along
the guiding slots. The holding bar and the holding inclined surface
clamp the webbing of the seat belt. The connector is mounted around
the frame and is connected to the webbing. The manipulating unit is
slidably mounted around the connector and has a pushing portion
formed on a back side of the front slat and disposed under the
holding bar and in front of the holding inclined surface. The
adjustment device is to connect the webbing's second segment that
is positioned vertically and clamp the webbing's first segment that
is fastened obliquely on a user, and is simply operated by stepless
adjustment to enhance comfort and safety.
Inventors: |
Wang; Liang-Hsiung (Tainan,
TW), Chu; Chia-Chun (Tainan, TW) |
Applicant: |
Name |
City |
State |
Country |
Type |
Wang; Liang-Hsiung |
Tainan |
N/A |
TW |
|
|
Assignee: |
Wang; Liang-Hsiung (Tainan,
TW)
|
Family
ID: |
56756759 |
Appl.
No.: |
15/451,576 |
Filed: |
March 7, 2017 |
Prior Publication Data
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|
|
|
Document
Identifier |
Publication Date |
|
US 20170267209 A1 |
Sep 21, 2017 |
|
Foreign Application Priority Data
|
|
|
|
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Mar 16, 2016 [TW] |
|
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105203609 U |
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
B60R
22/20 (20130101); B60R 22/30 (20130101); B60R
22/10 (20130101); B60R 22/24 (20130101); B60R
22/105 (20130101); B60R 2022/1818 (20130101) |
Current International
Class: |
B60R
22/10 (20060101); B60R 22/30 (20060101); B60R
22/20 (20060101) |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Gooden, Jr.; Barry
Attorney, Agent or Firm: Rosenberg, Klein & Lee
Claims
What is claimed is:
1. An adjustment device for a seat belt mechanism comprising: a
frame comprising: a base; two straight edges respectively disposed
at a left side of the base and a right side of the base; and a
holding inclined surface formed on a front side of the base,
disposed between the two straight edges, and inclined forwardly
from top to bottom; a guide comprising: two guiding bars
respectively fixed at a left side of the frame and a right side of
the frame, and disposed in front of the two straight edges at an
interval; and two guiding slots, each of the two guiding slots
surrounded by a corresponding one of the two guiding bars and a
corresponding one of the two straight edges, and extending
longitudinally; a holding bar transversely disposed on the holding
inclined surface, and comprising two opposite ends respectively
extending into the two guiding slots to be movable along the two
guiding slots; a connector mounted around the frame and comprising:
two side walls arranged at an interval; a back wall connected
between rear portions of the two side walls; a cross arm connected
between tops of the two side walls and disposed above the holding
bar; a through slot extending longitudinally, and surrounded by the
back wall and a back side of the frame; and a manipulating unit
slidably mounted around the connector, and comprising: a front slat
positioned in front of the frame and the guide; two side slats
respectively extending backwardly from a left side of the front
slat and a right side of the front slat, and being respectively
adjacent to the two side walls; a pushing portion formed on a back
side of the front slat, and disposed under the holding bar and in
front of the holding inclined surface; and two limit portions
disposed on top sides of the two side slats respectively and above
a top of the connector.
2. The adjustment device as claimed in claim 1, wherein: the frame
comprises: two insertion slots respectively disposed at the left
side of the base and the right side of the base, and being adjacent
to a bottom side of the base; and two hooks respectively disposed
at the left side of the base and the right side of the base, and
being adjacent to a top side of the base; and each of the two
guiding bars comprises: a top end; a bottom end; an upper
protrusion extending backwardly from the top end, and abutting the
top side of the base; a lower protrusion extending backwardly from
the bottom end, and inserted into a corresponding one of the two
insertion slots; and an engaging notch disposed on the top end, and
engaged with a corresponding one of the two hooks.
3. The adjustment device as claimed in claim 1, wherein the guide
comprises a cross bar connected between the two guiding bars and
integrated as one single part with the two guiding bars.
4. The adjustment device as claimed in claim 1, wherein the
connector comprises two guiding grooves respectively disposed on
the rear portions of the two side walls and extending
longitudinally; and the manipulating unit comprises two sliding
rails respectively longitudinally disposed on the two side slats
and respectively disposed in the two guiding grooves.
5. The adjustment device as claimed in claim 1, wherein the frame
comprises: two resilient blocks respectively disposed at a top of
the left side of the base and a top of the right side of the base;
and two engaging protrusions respectively protruding outwardly from
a bottom of the left side of the base and a bottom of the right
side of the base and arranged under the two resilient blocks; and
the connector comprises: two top engaging recesses respectively
disposed on the tops of the two side walls and respectively
connected with the two resilient blocks; and two bottom engaging
recesses respectively disposed on bottoms of the two side walls and
respectively connected with the two engaging protrusions.
6. The adjustment device as claimed in claim 1, wherein the holding
bar comprises two annular recesses respectively formed on the two
opposite ends, and each of the two annular recesses is connected
with the corresponding one of the two guiding bars and the
corresponding one of the two straight edges.
7. The adjustment device as claimed in claim 6, wherein the
connector comprises two guiding grooves respectively disposed on
the rear portions of the two side walls and extending
longitudinally; and the manipulating unit comprises two sliding
rails respectively longitudinally disposed on the two side slats
and respectively disposed in the two guiding grooves.
8. The adjustment device as claimed in claim 7, wherein the frame
comprises: two resilient blocks respectively disposed at a top of
the left side of the base and a top of the right side of the base;
and two engaging protrusions respectively protruding outwardly from
a bottom of the left side of the base and a bottom of the right
side of the base, and arranged under the two resilient blocks; and
the connector comprises: two top engaging recesses respectively
disposed on the tops of the two side walls and respectively
connected with the two resilient blocks; and two bottom engaging
recesses respectively disposed on bottoms of the two side walls and
respectively connected with the two engaging protrusions.
9. The adjustment device as claimed in claim 1, wherein the
adjustment device comprises: an elastomer mounted through the
through slot and around the back wall; and a connecting piece
mounted on the elastomer.
10. The adjustment device as claimed in claim 9, wherein the frame
comprises: two insertion slots respectively disposed at the left
side of the base and the right side of the base, and being adjacent
to a bottom side of the base; and two hooks respectively disposed
at the left side of the base and the right side of the base, and
being adjacent to a top side of the base; and each of the two
guiding bars comprises: a top end; a bottom end; an upper
protrusion extending backwardly from the top end, and abutting the
top side of the base; a lower protrusion extending backwardly from
the bottom end, and inserted into a corresponding one of the two
insertion slots; and an engaging notch disposed on the top end, and
engaged with a corresponding one of the two hooks.
11. The adjustment device as claimed in claim 10, wherein the
connector comprises two guiding grooves respectively disposed on
the rear portions of the two side walls and extending
longitudinally; and the manipulating unit comprises two sliding
rails respectively longitudinally disposed on the two side slats
and respectively disposed in the two guiding grooves.
12. The adjustment device as claimed in claim 10, wherein the frame
comprises: two resilient blocks respectively disposed at a top of
the left side of the base and a top of the right side of the base;
and two engaging protrusions respectively protruding outwardly from
a bottom of the left side of the base and a bottom of the right
side of the base, and arranged under the two resilient blocks; and
the connector comprises: two top engaging recesses respectively
disposed on the tops of the two side walls and respectively
connected with the two resilient blocks; and two bottom engaging
recesses respectively disposed on bottoms of the two side walls and
respectively connected with the two engaging protrusions.
13. The adjustment device as claimed in claim 10, wherein the guide
comprises a cross bar connected between the two guiding bars and
integrated as one single part with the two guiding bars.
14. The adjustment device as claimed in claim 13, wherein the
holding bar comprises two annular recesses respectively formed on
the two opposite ends, and each of the two annular recesses is
connected with the corresponding one of the two guiding bars and
the corresponding one of the two straight edges.
15. The adjustment device as claimed in claim 14, wherein the
connector comprises two guiding grooves respectively disposed on
the rear portions of the two side walls and extending
longitudinally; and the manipulating unit comprises two sliding
rails respectively longitudinally disposed on the two side slats
and respectively disposed in the two guiding grooves.
16. The adjustment device as claimed in claim 15, wherein the frame
comprises: two resilient blocks respectively disposed at a top of
the left side of the base and a top of the right side of the base;
and two engaging protrusions respectively protruding outwardly from
a bottom of the left side of the base and a bottom of the right
side of the base and arranged under the two resilient blocks; and
the connector comprises: two top engaging recesses respectively
disposed on the tops of the two side walls and respectively
connected with the two resilient blocks; and two bottom engaging
recesses respectively disposed on bottoms of the two side walls and
respectively connected with the two engaging protrusions.
17. The adjustment device as claimed in claim 10, wherein the
holding bar comprises two annular recesses respectively formed on
the two opposite ends, and each of the two annular recesses is
connected with the corresponding one of the two guiding bars and
the corresponding one of the two straight edges.
18. The adjustment device as claimed in claim 17, wherein the
connector comprises two guiding grooves respectively disposed on
the rear portions of the two side walls and extending
longitudinally; and the manipulating unit comprises two sliding
rails respectively longitudinally disposed on the two side slats
and respectively disposed in the two guiding grooves.
19. The adjustment device as claimed in claim 18, wherein the frame
comprises: two resilient blocks respectively disposed at a top of
the left side of the base and a top of the right side of the base;
and two engaging protrusions respectively protruding outwardly from
a bottom of the left side of the base and a bottom of the right
side of the base, and arranged under the two resilient blocks; and
the connector comprises: two top engaging recesses respectively
disposed on the tops of the two side walls and respectively
connected with the two resilient blocks; and two bottom engaging
recesses respectively disposed on bottoms of the two side walls and
respectively connected with the two engaging protrusions.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is based upon and claims priority under 35 U.S.C.
119 from Taiwan Patent Application No. 105203609 filed on Mar. 16,
2016, which is hereby specifically incorporated herein by this
reference thereto.
BACKGROUND
1. Technical Field
The present invention relates to an adjustment device, and more
particularly to an adjustment device applied to a seat belt
mechanism of a motor vehicle.
2. Description of the Prior Art(s)
A seat belt mechanism is designed for the safety of the driver or
the passenger seated on the seat of the motor vehicle. Generally,
the seat belt mechanism has a retractor, a webbing, a guiding ring,
a tongue mounted on the webbing, and a buckle. The retractor is
mounted inside the motor vehicle. The guiding ring is mounted in
the motor vehicle at a position above the retractor. When a user is
seated on the seat, the webbing is pulled out from the retractor,
passes through the guiding ring, and passes by the front side of
the user's torso from top to bottom obliquely. And then the tongue
is connected with the buckle, so as to restrain the user on the
seat.
For the safety and the comfort of the user, the height of the
guiding ring for small-sized cars is designed to be adjustable. In
this way, the height of the guiding ring may be adjusted according
to the height of the user, so as to prevent the webbing from
abutting against the neck of the user and to improve the comfort.
However, the adjustment range of the guiding ring is short and the
height adjustment is done in multiple steps. As such, the guiding
ring barely meets the needs of different users in terms of
comfort.
In addition, the height of the guiding ring for large-sized cars,
such as a truck or a sport utility vehicle (SUV), may not be
adjusted. The webbing may be at an improper position when in use.
Therefore, the driver or the passenger seated in the large-sized
cars is unsafe and uncomfortable when using the seat belt.
To overcome the shortcomings, an adjustment device for a seat belt
mechanism to mitigate or obviate the aforementioned problems is
provided.
SUMMARY
An objective of the present invention is to provide an adjustment
device for a seat belt mechanism to overcome the technical
limitation in the insufficient comfort provided by the guiding ring
for the users using the seat belt mechanism.
In accordance with an embodiment, the adjustment device comprises a
frame, a guide, a holding bar, a connector, and a manipulating
unit. The frame comprises a base, two straight edges, and a holding
inclined surface. The straight edges are respectively disposed at a
left side of the base and a right side of the base. The holding
inclined surface is formed on a front side of the base, disposed
between the straight edges, and inclined forwardly from top to
bottom. The guide comprises two guiding bars and two guiding slots.
The guiding bars are respectively fixed at a left side of the frame
and a right side of the frame, and are disposed in front of the
straight edges at an interval. Each of the guiding slots is
surrounded by a corresponding one of the guiding bars and a
corresponding one of the straight edges, and extends
longitudinally. The holding bar is transversely disposed on the
holding inclined surface. The holding bar comprises two opposite
ends respectively extending into the guiding slots, so as to be
movable along the guiding slots. The connector is mounted around
the frame. The connector comprises two side walls arranged at an
interval, a back wall connected between the side walls, a cross arm
connected between the side walls and disposed above the holding
bar, and a through slot extending longitudinally. The through slot
is surrounded by the back wall and a back side of the frame. The
manipulating unit is slidably mounted around the connector. The
manipulating unit comprises a front slat, two side slats, a pushing
portion, and two limits. The front slat is positioned in front of
the frame and the guide. The side slats respectively extend
backwardly from a left side of the front slat and a right side of
the front slat. The side slats are adjacent to the side walls
respectively. The pushing portion is formed on a back side of the
front slat. The pushing portion is disposed under the holding bar
and in front of the holding inclined surface. The limit portions
are disposed on the top sides of the side slats respectively and
above a top of the connector.
The adjustment device may be mounted through by a first segment of
a webbing of a seat belt mechanism and mounted on a second segment
of the same webbing, wherein the first segment passes by the front
side of the user's torso from top to bottom obliquely, and the
second segment is positioned between a retractor and a guiding ring
of the seat belt mechanism vertically. The holding bar and the
holding inclined surface may clamp the first segment to lock the
adjustment device on the webbing. The adjustment device may be
unlocked by the manipulating unit to move upwardly or downwardly
along the webbing for a stepless height adjustment. After the
external force exerted on the manipulating unit is removed, the
holding bar may be pushed toward the holding inclined surface by
the tension of the webbing, and thus the adjustment device
automatically locks on the webbing. As such, the position of the
webbing may be adjusted easily, thereby enhancing the safety and
the comfort of a user using the seat belt mechanism.
Further, the height of the adjustment device on the webbing is
adjusted as follows.
In one aspect, the user only needs to apply a downward pressure
relative to the webbing on the connector by the manipulating unit
to force the frame to move downwardly relative to the webbing, and
thus the holding bar is moved away from the holding inclined
surface by the friction between the holding bar and the first
segment to disable the adjustment device's locking facility to the
first segment. And then the height of the adjustment device on the
webbing may be decreased.
In another aspect, the user only needs to move the manipulating
unit upwardly relative to the webbing by hand, and thus the holding
bar is pushed upwardly by the manipulating unit and is moved away
from the holding inclined surface to disable the adjustment
device's locking facility to the first segment. Then the height of
the adjustment device on the webbing may be increased.
Once the height of the adjustment device on the webbing is adjusted
to the desired position, the holding bar may be pushed toward the
holding inclined surface by the tension of the webbing, and the
adjustment device may be automatically locked on the webbing again.
Accordingly, the operation of the adjustment device is simple.
Therefore, the adjustment device not only has the advantage of
enhancing the comfort and the safety of using the seat belt
mechanism, but also has the advantage of simple operation.
Other objectives, advantages, and novel features of the embodiments
of the present invention will become more apparent from the
following detailed description when taken in conjunction with the
accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a front exploded perspective view of an embodiment of an
adjustment device for a seat belt mechanism in accordance with the
present invention;
FIG. 2 is a front exploded perspective view of the adjustment
device in FIG. 1, showing the base, the guide, and the holding bar
are assembled;
FIG. 3 is a front exploded perspective view of another embodiment
of an adjustment device for a seat belt mechanism in accordance
with the present invention;
FIG. 4 is a front exploded perspective view of the adjustment
device in FIG. 1, showing the base, the guide, the holding bar, and
the connector are assembled;
FIG. 5 is a back exploded perspective view of the adjustment device
in FIG. 4;
FIG. 6 is a back perspective view of the adjustment device in FIG.
1, shown fully assembled;
FIG. 7 is a schematic view of applying the adjustment device in
FIG. 1 to the webbing of the seat belt mechanism fastened on a
user;
FIG. 8 is a schematic cross sectional side view of fixedly mounting
the adjustment device of FIG. 1 on the webbing;
FIG. 9 is a cross sectional side view of pushing the manipulating
unit of the adjustment device in FIG. 1 upwardly and releasing the
first segment of the webbing from the held state; and
FIG. 10 is a cross sectional side view of pulling the manipulating
unit of the adjustment device in FIG. 1 downwardly and releasing
the first segment of the webbing from the held state.
DETAILED DESCRIPTION
With reference to FIG. 1, an embodiment of an adjustment device 10
for a seat belt mechanism comprises a frame 20, a guide 30, a
holding bar 40, a connector 50, and a manipulating unit 60.
With reference to FIGS. 1 and 2, the frame 20 comprises a base 21,
a holding inclined surface 22 formed on a front side of the base
21, two straight edges 23, two insertion slots 24, two hooks 25,
two resilient blocks 26, and two engaging protrusions 27. The
straight edges 23 are disposed at a left side of the base 21 and a
right side of the base 21 respectively. The holding inclined
surface 22 is disposed between the straight edges 23. The holding
inclined surface 22 is inclined forwardly from top to bottom. The
insertion slots 24 are disposed at the left side of the base 21 and
the right side of the base 21 respectively, and are adjacent to a
bottom side of the base 21. The hooks 25 are disposed at the left
side of the base 21 and the right side of the base 21 respectively,
and are adjacent to a top side of the base 21. The resilient blocks
26 are disposed at a top of the left side of the base 21 and a top
of the right side of the base 21 respectively. The engaging
protrusions 27 protrude outwardly from a bottom of the left side of
the base 21 and a bottom of the right side of the base 21
respectively. The engaging protrusions 27 are arranged respectively
under the resilient blocks 26.
With reference to FIGS. 1 and 2, the guide 30 comprises two guiding
bars 31. The guiding bars 31 are fixed at a left side of the frame
20 and a right side of the frame 20 respectively. The guiding bars
31 are disposed in front of the straight edges 23 at an interval.
Each of the guiding slots 32 is formed between a corresponding one
of the guiding bars 31 and a corresponding one of the straight
edges 23. The guiding slots 32 extend longitudinally. In an
embodiment, as shown in FIG. 1, the guiding bars 31 are two
independent elements. In another embodiment, as shown in FIG. 3,
the guide 30 further comprises a cross bar 33 connected between the
guiding bars 31. The guide 30 is integrated as one single part.
With reference to FIGS. 1 and 2, each of the guiding bars 31
comprises a top end, a bottom end, an upper protrusion 311
extending backwardly from the top end, a lower protrusion 312
extending backwardly from the bottom end, and an engaging notch 313
disposed on the top end. The upper protrusion 311 abuts the top
side of the base 21, the lower protrusion 312 is inserted into a
corresponding one of the insertion slots 24, and the engaging notch
313 is engaged with a corresponding one of the hooks 25, so as to
fix the guide 30 on the base 21.
With reference to FIGS. 1 and 2, the holding bar 40 is transversely
disposed at the front side of the base 21 and on the holding
inclined surface 22. The holding bar 40 comprises two opposite ends
extending into the guiding slots 32 respectively, so that the
holding bar 40 may move up and down along the guiding slots 32. In
an embodiment, as shown in FIGS. 1 and 3, the holding bar 40
comprises two annular recesses 41 formed on the two opposite ends
respectively. Each of the annular recesses 41 is connected with a
corresponding one of the guiding bars 31 and a corresponding one of
the straight edges 23.
With reference to FIGS. 1, 2, 4, and 5, the connector 50 is mounted
around the frame 20. The connector 50 comprises two side walls 51,
a back wall 52, a cross arm 53, a through slot 54, two guiding
grooves 55, two top engaging recesses 56, and two bottom engaging
recesses 57. The side walls 51 are arranged at an interval. The
back wall 52 is connected between rear portions of the side walls
51. The cross arm 53 is connected between tops of the side walls 51
and is disposed above the holding bar 40. The through slot 54
extends longitudinally and is surrounded by the back wall 52 and a
back side of the frame 20. The guiding grooves 55 are disposed on
the rear portions of the side walls 51 respectively and extend
longitudinally. The top engaging recesses 56 are disposed on the
tops of the side walls 51 respectively. Each of the top engaging
recesses 56 is connected to a corresponding one of the guiding
grooves 55. The bottom engaging recesses 57 are disposed on bottoms
of the side walls 51 respectively. The connector 50 is fixed with
the frame 20 by engaging the top engaging recesses 56 with the
resilient blocks 26 respectively, and engaging the bottom engaging
recesses 57 with the engaging protrusions 27 respectively.
With reference to FIGS. 1, 4, and 5, the manipulating unit 60 is
slidably mounted around the connector 50. The manipulating unit 60
comprises a front slat 61, two side slats 62, a pushing portion 63,
two limit portions 64, and two sliding rails 65. The front slat 61
is positioned in front of the frame 20 and the guide 30. The side
slats 62 extend backwardly from a left side of the front slat 61
and a right side of the front slat 61 respectively. The side slats
62 are adjacent to the side walls 51 respectively. The pushing
portion 63 protrudes backwardly on a back side of the front slat
61. The pushing portion 63 is disposed under the holding bar 40 and
in front of the holding inclined surface 22. The limit portions 64
are disposed on the top sides of the two side slats 62
respectively. The limit portions 64 are disposed above the
connector 50. The sliding rails 65 are longitudinally disposed on
the side slats 62 respectively. The sliding rails 65 are disposed
in the guiding grooves 55 respectively, so that the manipulating
unit 60 may slide up and down relative to the connector 50.
With reference to FIGS. 1, 5 to 7, the adjustment device 10 further
comprises an elastomer 80 and a connecting piece 81. The elastomer
80 is mounted through the through slot 54 and around the back wall
52. The connecting piece 81 is mounted on the elastomer 80.
With reference to FIGS. 1, and 6 to 8, in use, the adjustment
device 10 is mounted on a seat belt mechanism. The seat belt
mechanism comprises a webbing 70, a retractor 71, and a guiding
ring 72. The webbing 70 is pulled out from the retractor 71 and
passes through the guiding ring 72. The webbing 70 has a first
segment 701 passing by the front side of the user from top to
bottom obliquely, and a second segment 702 connected with the first
segment 701 and positioned between the retractor 71 and the guiding
ring 72. The connecting piece 81 mounted on the elastomer 80 is
connected between the second segment 702 and the elastomer 80. The
first segment 701 extends through the top of the manipulating unit
60, extends between the front slat 61 and the cross arm 53, extends
between the holding bar 40 and the holding inclined surface 22,
extends between the pushing portion 63 and the holding inclined
surface 22, and extends outwardly from the bottom of the adjustment
device 10.
Alternatively, the elastomer 80 and the connecting piece 81 may be
omitted for mounting the adjustment device 10. In this way, the
second segment 702 may pass through the through slot 54
directly.
FIG. 8 shows that the adjustment device 10 is fixedly mounted on
the webbing 70. Since the first segment 701 of the webbing 70 abuts
against the cross arm 53 and is coiled around the holding bar 40,
the holding bar 40 is pushed toward the holding inclined surface 22
by the tension of the webbing 70. As such, the first segment 701 is
clamped between the holding bar 40 and the holding inclined surface
22. Further, when the webbing 70 and the frame 20 are moved
relative to each other, the relative position between the webbing
70 and the frame 20 may be automatically locked by the frictions
between the webbing 70 and the holding bar 40, between the webbing
70 and the holding inclined surface 22, and between the holding bar
40 and the guide 30.
With reference to FIG. 9, the manipulating unit 60 is moved
upwardly relative to the frame 20, and the pushing portion 63
forces the holding bar 40 to move upwardly along the guiding slot
32 and away from the holding inclined surface 22, so as to unlock
the first segment 701 from the adjustment device 10. In this way,
the webbing 70 may be released from the holding inclined surface 22
and the holding bar 40, and the whole adjustment device 10 may move
upwardly along the first segment 701. Accordingly, an increase in
the height of the adjustment device 10 on the webbing 70 may be
freely adjusted.
With reference to FIG. 10, the manipulating unit 60 is moved
downwardly relative to the frame 20. The limit portion 64 presses
the connector 50 to force the frame 20 to move downwardly relative
to the webbing 70. The holding bar 40 is moved away from the
holding inclined surface 22 by the friction between the holding bar
40 and the first segment 701. As such, the first segment 701 is
unlocked from the adjustment device 10. In this way, the whole
adjustment device 10 may move downwardly along the first segment
701. Accordingly, a decrease in the height of the adjustment device
10 on the webbing 70 may be freely adjusted.
Once the height of the adjustment device 10 on the webbing 70 is
adjusted to the desired position, the holding bar 40 may be pushed
toward the holding inclined surface 22 by the tension of the
webbing 70, and the adjustment device may automatically lock the
webbing 70 again.
* * * * *